What do you mean by AV file, M file and TV file of camera, and what is their function? I have a SLR camera that doesn't work. I don't know what the A, M and S files are for.

1, a- aperture priority mode-aperture adjustment-automatic speed change.

2.t- Shutter priority mode-Adjust shutter-Aperture changes automatically.

3, AUTO-automatic gear, just press the shutter.

4.P file is program exposure. "The camera will give a reasonable aperture shutter combination according to the built-in metering system, and you just need to choose a suitable one from the middle with the dial." ?

5, TV, I think some cameras are also called S, and the shutter is preferred. You set a shutter speed and the camera calculates the aperture itself. All you have to do is change the shutter speed. ?

6, AV, aperture priority, similar to TV. You just need to set the aperture and the camera calculates the shutter speed. ?

7. M, manual and aperture shutters are all set manually. ?

Imaging process

Traditional camera imaging

1. The lens focuses the scene image on the film.

2. The photosensitizer on the chip will change with the light.

3. The changed photosensitive agent on the wafer is developed and fixed by the developer.

4. Form an image that is opposite or complementary to the scenery.

5. Is the formed image a real image?

Digital camera imaging

1. The light passing through the lens is focused on CCD or CMOS.

2.CCD or CMOS converts light into electrical signals.

3. Processed by the processor and recorded in the memory of the camera.

4. The image is formed by computer processing and electro-optical conversion of display, or printed by printer. The specific process: the light enters the camera from the lens, and the CCD performs color filtering and photosensitive (photoelectric conversion) to "decompose" the photographed object into pixels according to a certain arrangement. These pixels are transmitted to the "analog-to-digital converter" in the form of analog image signals, converted into digital signals, transmitted to the image processor, processed into real images, and then compressed and stored in the storage medium.

5. For a film camera, the reflected light of the scene converges through the lens and forms a latent image on the film, which is the result of the chemical reaction between the light and the emulsion on the film. After development and fixing, an image is formed.

6. The digital camera focuses the image on the imaging element CCD/CMOS through the optical system, converts the photoelectric signal of each pixel into a digital signal through the A/D converter, and then processes it into a digital image through the DSP and stores it in the storage medium.